Waves

MECHANICAL WAVES Links https://www.youtube.com/ watch?v=w2s2fZr8sqQ

Review 1) Pedagogical goal o Remedial practice. o Support as teaching instrument/s, especially while expounding new contents 2) School Level: 10-12 class 3) Level of difficulty: medium 4) Language: English 5) Interactivity: no 6) Problems: none 7) Weak points: need a good internet 8) Strong points: examples form everyday life, clear explanation of difference between transverse and longitudinal waves 9) Overall review 10) Example of use Teachers can show the video as introduction to topics Students can revise video to better understanding

https://phet.colorado.edu/ en/simulation/wave-on-astring

1) Pedagogical goal o Remedial practice. o Support as teaching instrument/s, especially while expounding new contents o Simulations o Didactic material/s useful for experiments or practical activities o Group- work o Homework assignments 2) School Level: 10-12 class 3) Level of difficulty: medium 4) Language: English (other languages in Flash) 5) Interactivity: yes 6) Problems: only the English version is html5 7) Weak points: need a good internet 8) Strong points: you can find a good simulation according to the theme 9) Overall review 10) Example of use Teachers can show the video as introduction to topics Students can use the simulation and answer to some questions to understand key words’ meaning (amplitude, frequency,‌)

http://serc.carleton.edu/st udent_videos/index.html

1) Pedagogical goal o Homework assignments.

o Further consolidation and revision practice in class. o Simulations o Didactic material/s useful for experiments or practical activities o Group- work o Homework assignments

(very interesting standing waves)

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School Level: 10 -12 class Level of difficulty: medium Language: english Interactivity: yes Problems : with this website don’t have problems Weak points: need a good internet Strong points: good website for homework Overall review

10) Example of use The simulation standing waves can be used to solve problems as: find wave speed, find the hanging mass to have a particular standing wave https://phet.colorado.edu/ en/simulation/legacy/wave -interference

1) Pedagogical goal o Remedial practice. o Homework assignments. o Further consolidation and revision practice in class. o Simulations. o Didactic material/s useful for experiments or practical activities. o Group- work.

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School Level: 10 -12 class Level of difficulty: medium Language: english Interactivity: yes Problems: not supported from all browser Weak points: need a good internet Strong points: good website for simulations Overall review

10) Example of use Students can investigate and discover the similarities between surface waves, sound and light After performing experiences with the ripple tank students can know more about and make more easily measurements http://www.compadre.org/ 1) Pedagogical goal o Remedial practice.

Physlets/waves/ o Homework assignments.

o Simulations.

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School Level: 10 -12 class Level of difficulty: medium Language: english Interactivity: yes Problems: Physlets run in a Java-enabled browser Weak points: need a good internet Strong points: Solve problems through simulations Overall review

10) Example of use Students can use the simulations for a better understanding of the concepts.

In group in class or at home, students can solve the problems presented and then discuss their solutions with teacher and all class